Results 11 to 20 of about 907 (260)
Gong-kuang zidonghua, 2022 The coal mine power supply and distribution system usually adopts the neutral point non-effectively grounded method. Most of the power supply lines in this method use cable lines.
SI Weibin +6 more
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FEATURES OF A FAULTY PHASE AT SINGLE PHASE-TO-GROUND FAULTS
Electrical and data processing facilities and systems, 2022 Relevance Devices for determining the location of fault on power lines assume a known type of short circuit and faulty phases. However, their algorithms, as a rule, can not distinguish the faulty phase. Therefore, the determination of faulty phases during short circuits on power lines is performed by separate devices – faulty phase selectors.
Vitaly Shabanov, Alexander Sorokin
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Fault Characteristic Analysis of Single-Phase Grounding Fault in AC grid of Energy Router in Interacted and Interconnected Micro Grid [PDF]
E3S Web of Conferences, 2021 The energy router composed of double active bridge (DAB) can interconnect multiple voltage level AC distribution network through DC lines to form AC/DC hybrid distribution network.
Sang Zi-xia +5 more
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Feasibility analysis of neutral grounding by small reactor of HVDC converter transformer
Energy Reports, 2022 Nowadays, the scale of power grid is remarkably increasing and there is a continuous reinforcement of AC–DC hybrid systems. Thus, the single-phase grounding fault currents on the AC grid-side of rectifier and inverter stations increase significantly ...
Ensheng Zhao +5 more
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Modelling and control of current full compensation system‐based controllable voltage source
IET Generation, Transmission & Distribution, 2023 Current active suppression technology of arc overvoltage in distribution network has small capacity of controllable voltage source and complex control and cannot flexibly adjust the zero‐sequence voltage of neutral point.
Hongwen Liu +3 more
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One-mode component-based fault section location method for mine high-voltage power network
Gong-kuang zidonghua, 2021 After a single-phase grounding fault occurs in the mine high-voltage power network, it is important to identify the fault section quickly for the safe and stable operation of the mine power network.
ZHAO Jianwen, CHEN Jiali
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Single-phase grounding fault line selection method based on zero-sequence current increment
Energy Reports, 2022 To address single-phase grounding fault line selection problem in small current grounding distribution network, the paper proposes a fault line selection method based on zero-sequence current (ZSC) increment.
Bai Hao
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Design of a mine-used low-voltage leakage protection device
Gong-kuang zidonghua, 2020 In view of low reliability of leakage protection device of coal mine low-voltage power grid based on line selection principle of zero-sequence power direction, a hardware and software design scheme of mine-used low-voltage leakage protection device was ...
ZHENG Qingle +3 more
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Meikuang Anquan, 2022 When a single-phase grounding fault occurs in the coal mine 10 kV power supply system, due to the low sampling frequency of the system, the traditional transient line selection method is easy to lose the “line selection information”, and is greatly ...
GUO Runshou, CAO Jiyuan
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Research on Single-Phase Grounding Fault Location Technology
Journal of Physics: Conference Series, 2019 Abstract In view of the complex structure, large scale and high failure rate of distribution network, as well as many branch lines, large transition resistance, difficult to detect fault signals and difficult to locate accurately., A single-phase grounding fault location method based on single-terminal measurement for distribution ...
Zhang Xiping +6 more
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